고지서를 받으�?송달지(실거주지)�?변경하실려�?서비스를 신청하여 주시�?바랍니다. If a grammatical theory that may be additional to 서툴�?can be a vowel �?and there's no other solution besides a vowel �?then that grammatical basic principle cannot be added to 서툴�? 의약품안전나�?�